| Parameter | Type | Description | Example |
|---|---|---|---|
| object | The custom configurations when you use MNS as the event source. | ||
| RegionId | string | The region to which the MNS queue belongs. | cn-hangzhou |
| QueueName | string | The name of the MNS queue. | demo |
| IsBase64Decode | boolean | Indicates whether Base64 encoding is enabled. Default value: true. | true |